Finding the Fourth Proportional to 3,196.80, 4,412.88 and 2,018.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.80 : 4,412.88 = 2,018.52 : x
2. Step 2: Convert to fraction form
   3,196.80/4,412.88 = 2,018.52/x
3. Step 3: Cross multiply
   3,196.80x = 4,412.88 × 2,018.52
4. Step 4: Simplify right side
   3,196.80x = 8,907,486.54
5. Step 5: Solve for x
   x = 8,907,486.54/3,196.80
6. Step 6: Final answer
   x = 2,786.38